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Visitor
rayfoulkes
Posts: 9
Registered: ‎02-24-2012

CRC error in 20120224-002-v5i32.exe

After many problems trying to update virus definitions for a 32 bit win7 computer
I was pointed to download the virus definitions from:
http://www.symantec.com/security_response/definitions/download/detail.jsp?gid=n95

The first file which is the one for me: 20120224-002-v5i32.exe gives me the following errors:

Extracting intiupdater.exe
Extracting iuresource.dll
Extracting iuconfig.xml
Extracting unrar.dll
Extracting VIRSCAN.ZIP
CRC failed in VIRSCAN.ZIP

I have downloaded it 4 times with both ftp and http and firefox and IE. Can
somebody else please check that it is  not just my computer that ALWAYS gives
the exact same error at the same file on many different downloads.

PapauZ
Posts: 6,792
Topics: 392
Kudos: 1,025
Solutions: 374
Registered: ‎04-08-2008

Re: CRC error in 20120224-002-v5i32.exe

Hi,

can you please tell us the exact version of your Norton product?
1. Open the main window
2. Click on Help & Support -> About menu
3. On the About window find the version number (it will look like this: 6.0.1.2)

Thanks!


Windows 8.1 Embedded Industry Pro x64 Hungarian, Norton 360 v21.3.0.12

Symantec Employee
HarryP
Posts: 788
Registered: ‎07-23-2010

Re: CRC error in 20120224-002-v5i32.exe

Hi Rayfoulkes,

 

Welcome to Norton Community!

 

This problem may happen if your computer is already infected by some virus/trojan and it is blocking the virus definitions to get updated into Norton product. I would suggest to try this:

https://www-secure.symantec.com/norton-support/jsp/help-solutions.jsp?docid=kb20100917002731EN_EndUs...

 

You may also try to download the Intelligent Update file to any other computer, and transfer it to yours via CD/Flash drive. Then run it to update the definitions.

 

Thanks,

HarryP

Visitor
rayfoulkes
Posts: 9
Registered: ‎02-24-2012

Re: CRC error in 20120224-002-v5i32.exe

I will have to do that tomorrow (very late now and no access to the computer). As far as I know it is the very latest version 6 downloaded today. However, in terms of my original question the version of Norton is irrelevant since I used a browser to download the virus file and it failed during self-extraction. I can maybe repeat the extraction in safe mode i.e. with NO Norton product running.

Visitor
rayfoulkes
Posts: 9
Registered: ‎02-24-2012

Re: CRC error in 20120224-002-v5i32.exe

OK, I will try that tomorrow, but I am updating from version 5 which reported no viruses and was updating ok.

Visitor
rayfoulkes
Posts: 9
Registered: ‎02-24-2012

Re: CRC error in 20120224-002-v5i32.exe

I have now downloaded the file using windows XP running AVG antivirus and will copy it across to the other computer tomorrow to see if that runs. Thanks for the hint.

Visitor
rayfoulkes
Posts: 9
Registered: ‎02-24-2012

Re: CRC error in 20120224-002-v5i32.exe

An update and good news...

HarryP - I did as you wrote and ran NPE.exe under safe mode. But before I did that I created another administrator user and used that user to run the program. It reported that there were NO threats.

 

I had used a windows XP computer to download both NPE.exe and 20120224-002-v5i32.exe and put them on a usb memory stick. I copied both of these to the desktop of the new user.

 

On a whim, whilst still in safe mode, I also ran 20120224-002-v5i32.exe - AMAZING, it ran without error and said that it had found a valid Norton product and updated it.

So, next I used an md5 summer to get the signatures. First the one downloaded with the windows XP machine (which is the one that I had downloaded on a windows XP machine and which succeeded:

                41961190b40eb517efcccc0a0a50cf7e *20120224-002-v5i32.exe


Then two that were downloaded by Firefox and IE on the windows 7 computer:

                d84affd55a51c99dfa715434b83c49d3 *20120224-002-v5i32.exe
                abcab0c2b3a36532e64cf19011247356 *20120224-002-v5i32(1).exe

AAAARRGGGHH - all different!!!

 

I then switched back to the original (administrator) user in full Windows and ran the Liveupdater. This downloaded around 70 megabytes and installed 2 updates successfully. This is the first time the automatic update has run without error on version 6 on this Windows 7 computer. I then rebooted and re-ran liveupdate which told me my product was fully up to date.

 

So, the immediate problem has been fixed, but it looks like I have a problem with downloading files. I have previously been caught out by anti-virus programs screwing up large downloads which are done by a downloader in parts with the AV intercepting the parts and somehow interfering with their assembly. It might be that. I will do a few more experiments before stopping this.

 

But in summary the original problem has now "gone away" but I don't believe has been fixed.

 

 

Visitor
rayfoulkes
Posts: 9
Registered: ‎02-24-2012

Re: CRC error in 20120224-002-v5i32.exe

Hi PapauZ, the version number that Norton reports is 6.0.1.2. The "about" window is hostile i.e. I cannot copy and paste from it.

Visitor
rayfoulkes
Posts: 9
Registered: ‎02-24-2012

Re: CRC error in 20120224-002-v5i32.exe

The virus definitions file has now changed to a new version, but I did some more downloading. http://www.symantec.com/security_response/definitions/download/detail.jsp?gid=n95 gives the md5sum as D684907EED1E68A233FF158D45C1287A for the new file.

First I downloaded it without changing anything:

20120224-034-v5i32(http1beforeexclude).exe  5cad91cbe02fc10875d5a6020c81298d

Definitely the wrong md5 sum, so corrupt. Then I tried to exclude the download directory from Norton AV, but all I could find was to exclude a directory "from manual or scheduled scans". I could not find out how to exclude the real time. Then I downloaded the 139 megabytes twice, once with ftp and once with http:


20120224-034-v5i32(ftp1).exe                d684907eed1e68a233ff158d45c1287a
20120224-034-v5i32(http2).exe               d684907eed1e68a233ff158d45c1287a

Great! the md5 sums were correct. So I thought I had the problem cracked. Just to give it one more try I downloaded it yet again, once more with http:

20120224-034-v5i32(http3).exe               a76c82b14ba2c518b5e8960a0b15c8a0

NOT FIXED!

Sigh, so I now know what the problem is: I cannot download large files reliably. Sometimes they work, sometimes not.

I turned off real time protection and re-downloaded, but got yet another md5 failure. So right this moment it seems that something is screwing up my downloading, but I don't know what, and it seems unlikely too be anything to do with Norton, but I will reboot and download the same thing in safe mode with networking to see if that makes any difference. So my best advice for someone with this sort of problem is DON'T IGNORE THE PROVISION OF MD5 SUMS ON THE WEBSITE (sorry about that).

Visitor
rayfoulkes
Posts: 9
Registered: ‎02-24-2012

Re: CRC error in 20120224-002-v5i32.exe

I have done further experiments. Even in safe mode, I cannot download reliably with either firefox or IE. I have no idea what is going on. I intend to switch to another computer on the same network to see if it is this Windows 7 computer or something else in the network which is causing the problem.

Sorry to have troubled you all, but this does not look like a Norton problem.